grade 6 August

Which of the following processes can be used to separate impurities from wheat?

• a.) Magnetic separation

• b.) Winnowing

• c.) Handpicking

• d.) Threshing

Which of the following processes is used to separate grains from stalks?

• a.) Threshing

• b.) Winnowing

• c.) Handpicking

• d.) All of the above

Which of the following processes is done after harvesting?

• a.) Winnowing

• b.) Threshing

• c.) Reaping

• d.) Cutting

Components of a mixture separated by sieving are done based on differences in their:

• a.) Weight

• b.) Colour

• c.) Shape

• d.) Size

The process of separating camphor from sand is ____.

• a.) Sublimation

• b.) Crystallisation

• c.) Evaporation

• d.) Distillation

The process of conversion of liquid into vapour is called ____.

• a.) Evaporation

• b.) Condensation

• c.) Heating

• d.) All of the above

The process in which a mixture of heavier particles and lighter particles are separated by the wind is ____

• a.) Threshing

• b.) Reaping

• c.) Harvesting

• d.) Winnowing

The method of separation used to separate stones from rice is

• a) handpicking

• (b) threshing

• (c) winnowing

• (d) all of these